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Mathematics 9 Online
OpenStudy (anonymous):

vertex of the function x^2+8x+15

OpenStudy (anonymous):

(-4,-1)

OpenStudy (anonymous):

-4,-1

OpenStudy (anonymous):

Complete the square: x^2+8x+16-16+15 (x+4)^2-1 So the vertex is (-4,-1) Which you can read straight off.

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